remove group constrainte, it's now a normal group

tests/dictionaries_old/45multi_family_basic/00-base.xml

@@ -0,0 +1,10 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<rougail version="0.9">
+  <variables>
+    <family name="base">
+      <family name="subfamily">
+        <variable name="variable" mode="basic"/>
+      </family>
+    </family>
+  </variables>
+</rougail>

tests/dictionaries_old/45multi_family_basic/makedict/after.json

@@ -0,0 +1,6 @@
+{
+    "rougail.base.subfamily.variable": {
+        "owner": "default",
+        "value": null
+    }
+}

tests/dictionaries_old/45multi_family_basic/makedict/base.json

@@ -0,0 +1,3 @@
+{
+    "rougail.base.subfamily.variable": null
+}

tests/dictionaries_old/45multi_family_basic/makedict/before.json

@@ -0,0 +1,6 @@
+{
+    "rougail.base.subfamily.variable": {
+        "owner": "default",
+        "value": null
+    }
+}

tests/dictionaries_old/45multi_family_basic/tiramisu/base.py

@@ -0,0 +1,18 @@
+from importlib.machinery import SourceFileLoader
+from importlib.util import spec_from_loader, module_from_spec
+loader = SourceFileLoader('func', 'tests/dictionaries/../eosfunc/test.py')
+spec = spec_from_loader(loader.name, loader)
+func = module_from_spec(spec)
+loader.exec_module(func)
+for key, value in dict(locals()).items():
+    if key != ['SourceFileLoader', 'func']:
+        setattr(func, key, value)
+try:
+    from tiramisu3 import *
+except:
+    from tiramisu import *
+option_4 = StrOption(name="variable", doc="variable", properties=frozenset({"basic"}))
+option_3 = OptionDescription(name="subfamily", doc="subfamily", children=[option_4], properties=frozenset({"basic"}))
+option_2 = OptionDescription(name="base", doc="base", children=[option_3], properties=frozenset({"basic"}))
+option_1 = OptionDescription(name="rougail", doc="rougail", children=[option_2])
+option_0 = OptionDescription(name="baseoption", doc="baseoption", children=[option_1])